JPS5645251A - Molding method of drag - Google Patents

Molding method of drag

Info

Publication number
JPS5645251A
JPS5645251A JP12042479A JP12042479A JPS5645251A JP S5645251 A JPS5645251 A JP S5645251A JP 12042479 A JP12042479 A JP 12042479A JP 12042479 A JP12042479 A JP 12042479A JP S5645251 A JPS5645251 A JP S5645251A
Authority
JP
Japan
Prior art keywords
molding sand
compressed air
squeeze
drag
molding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12042479A
Other languages
Japanese (ja)
Inventor
Nagato Unosaki
Kazuharu Matsui
Shigehiro Toyoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to JP12042479A priority Critical patent/JPS5645251A/en
Publication of JPS5645251A publication Critical patent/JPS5645251A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/02—Compacting by pressing devices only
    • B22C15/08—Compacting by pressing devices only involving pneumatic or hydraulic mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

PURPOSE:To easily obtain a drag of predetermined density by charging molding sand into a lower molding flask fitted at its lower opening with a freely elevatable squeeze plate provided with compressed air injecting means then registering a pattern plate having exhaust holes and injecting compressed air as specified. CONSTITUTION:Molding sand A is charged into the filling flask 1 and lower molding flask 17 fitted at the lower opening a freely elevatable squeeze plate 5 provided with means of injecting compressed air upward (air supply hole 8, fine exhaust holes 7, etc.), after which a pattern plate 18 provided with exhaust holes 22 is registered thereto. Thence, compressed air is injected from said compressed air injecting means to fluidize the molding sand A. Thence, air volume and pressure are increased to move the molding sand A upward. Further, the air volume and pressure are increased to increase the density of the molding sand A near the pattern plate 18; at the same time, the squeeze plate 5 is moved upward to squeeze the entire part of the molding sand A, whereby the drag having predetermined density and hardness and having no damages is easily and surely obtained.
JP12042479A 1979-09-18 1979-09-18 Molding method of drag Pending JPS5645251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12042479A JPS5645251A (en) 1979-09-18 1979-09-18 Molding method of drag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12042479A JPS5645251A (en) 1979-09-18 1979-09-18 Molding method of drag

Publications (1)

Publication Number Publication Date
JPS5645251A true JPS5645251A (en) 1981-04-24

Family

ID=14785870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12042479A Pending JPS5645251A (en) 1979-09-18 1979-09-18 Molding method of drag

Country Status (1)

Country Link
JP (1) JPS5645251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125449A (en) * 1991-01-02 1992-06-30 Taiyo Chuki Co., Ltd. Improved molding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125449A (en) * 1991-01-02 1992-06-30 Taiyo Chuki Co., Ltd. Improved molding machine

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